Looking for Police Gear?

I have two cousins who like collecting good gadgets that a police used which they want for personal use. But gadgets or gears that are good are not always available in the store. So they normally shop from store to store and end up ordering for the one that they want. Now they can shop online and collects for more. There are gadgets for tactical purposes and for self defense. I myself would want to have the good quality flashlights. Now I know where to get it.